Operation and Maintenance Energy Technology

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Hillary Bridges
5 years ago
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1 Operation and Maintenance Energy Technology Solutions for Cost Effective and Flexible Gas-Fired Power Plants

2 SENTRO- SENTRO - supports Power Plants in maintenance and operation for steam turbines, gas turbines and generators since 5 years.

The special know how combines the full service capabilities, which makes a readily available pool of expertise accessible.

Head of Siemens Service Harry Ossowski; generator commissioning engineer Hans Diebäcker, commissioning ST Thomas Siwczak, supervisor

2 2 SENTRO- SENTRO - supports Power Plants in maintenance and operation for steam turbines, gas turbines and generators since 5 years. We convince with our high technical standard in connection with flexible and fast solutions provide to our customers. The special know how combines the full service capabilities, which makes a readily available pool of expertise accessible. We are executing our jobs every time with experienced personnel developed by Siemens (for eg. Head of Siemens Service Harry Ossowski; generator commissioning engineer Hans Diebäcker, commissioning ST Thomas Siwczak, supervisor ST Rudi Deimling, supervisor Generator Helmut Best, Bump test Dr. Lutz Intichar, GT commissioning Willi Paschmann, etc.) Our target is to achieve in any time measurable results with our performances

service activities mainly include: Fabrication and Re-engineering of turbine and generator components Major Overhauls on Turbine and

3 3 Profile SENTRO - has more than MW experience Global network of local offices and workshops Duisburg (Germany) We occupy around 350 experienced people worldwide Our service activities mainly include: Fabrication and Re-engineering of turbine and generator components Major Overhauls on Turbine and Generator with own supervisor and tooling Istanbul (Türkei) Mobile On Site Machining Services A small abstract of our references: Alstom Power Ansaldo Siemens AG ABB AEG General Electric Power Machines Russia Voith Turbo GmbH & Co KG MAN LMZ

customers Usage of aggregated experiences and synergies Continuous improvement of the production and project management If you have any

4 4 Quality Standard Our Quality Demand On behalf of our customers, the quality standards of our work are extremely demanding on which we keep aligning our actions to provide every day: Perfect customer focus Custom-made performances for the needs and preferences of our customers Usage of aggregated experiences and synergies Continuous improvement of the production and project management If you have any questions, please feel free to contact our Office Manager Mrs. Sarit Gattenyo: ISO 14001:2004 ISO 9001:2008

5 Product Groups Operation & Maintenance Modernisation Service Programs EPC of power

improvement Project Management Expediting Asset Management Re- Location of power

5 5 Product Groups Operation & Maintenance Modernisation Service Programs EPC of power plants Operation of Plants LTSA for main components Outage Planning Erection improvement Project Management Expediting Asset Management Re- Location of power plants Feasibility Study Scope of Work Project Management Expediting Load and Efficiency upgrades Erection Planning Troubleshooting Measurement (e.g. vibration) Commissioning Training, Education CFD, FEM Analysis Due Diligence Competence for conventional and nuclear STEAM GENERATORS Power Plants Boiler ENERGY from WASTE PLANTS Gas- and Steam turbine Generator CCPP (future potential) Balance of Plant Auxiliary Systems I&C System

6 6 Performance scope for CCPP Full Service * *Individual packages are possible in spite of the presence of an OEM service contract

7 Gas Turbine Gas turbine Capability Minor

Types for full service Siemens: SGT 600, SGT 5-1000

Major overhauls Refurbishment Re-engineering hot gas

7 7 Gas Turbine Gas turbine Capability Minor inspections Hot Gas Path Inspections Gas turbine Types for full service Siemens: SGT 600, SGT SGT E, SGT F GE: Frame 6B, Frame 9E Major overhauls Refurbishment Re-engineering hot gas parts Load and Efficiency upgrade Commissioning Delivery of spare parts

8 8 Gas Turbine On-site cleaning solutions for GT parts Burner washing with flow measurement

9 9 Gas Turbine Parts

10 10 Gas Turbine Efficiency Improvements Major Overhaul at a SGT5 4000F Gas Turbine Result: Load increase of 18,4 MW Efficiency increase of 0,6% This extraordinary performance and efficiency increasing was a result of advanced Gas Turbine Maintenance knowledge of SENTRO-.

Gas Turbine Re-engineering 1st blade has complex internal structure and film cooling:

Trailing edge chamber with pin-fins and cut-back exit slots Leading edge showerhead

All geometry patterns (external & internal) have to be collected by high-precision

11 Gas Turbine Re-engineering 1st blade has complex internal structure and film cooling: serpentine-shaped cooling channels equipped with large number of turbulators (ribs) Trailing edge chamber with pin-fins and cut-back exit slots Leading edge showerhead cooling Special-shaped holes on blade surface Single crystal base material# TBC coating All geometry patterns (external & internal) have to be collected by high-precision scanning systems in all details. Geometry of the cooling configuration inside the blade leading edge 11

12 12 Steam Turbine Turbine Capability Minor inspections Major overhauls Re-blading (during an outage) Repair of turbine valves Modernisation of hydraulic control systems Delivery of spare parts Insulation

13 13 Steam Turbine

14 14 Steam Turbine

Result: Analysis shows that a singular event was the reason for the crack (cold

15 15 Steam Turbine Our target is to reach measurable result for our client FE Analysis of a crack in HP inner-casing Defect: Crack 20mm deep at 180 FEM Result: Analysis shows that a singular event was the reason for the crack (cold steam on hot casing) Casing can remain in operation Monitoring of temperature difference

16 16 Generator Generator Capability Minor inspections Major overhauls Rewinding on site Repair on windings on site Bump test Electrical tests Major overhaul H2 and seal oil system Delivery of spare parts

17 17 Generator H 2 -shaft sealing - is there any improvement possible? Situation The H 2 -shaft sealing is complex and fault-prone During the manufacturing process of steel/ white alloy seal rings has many time lacks of babbit fusion A lot of parameter influence the life time of seal rings like seal oil pressure, mass flow, vibration etc. A fault of the seal ring reduce the availabilty of the plant and reduce the profit

18 18 Generator H 2 -shaft sealing - is there any improvement possible? Solution H 2 -shaft sealing without white alloy H 2 -shaft sealing only with bronze No design changes necessary No lacks of babbit fusion any more A very good emergency run down character Reduction of seal oil mass flow inlet by 30% Reduction of seal oil H 2 side by 15% Increase of availabilty of the plant Experience in a 3000 rpm nuclear power plant existing

19 Stress range 19 Engineering Service lifetime assessment of planetary gears CAD Model Data for load spectra 0,9 0,8 0,7 Relative torque load 0,6 0,5 0,4 0,3 0,2 0, Time FE analysis of gear teeth Typical S-N diagram Lifetime prediction Failure Analysis Reliability Analysis Cycles to Failure

20 20 Special Tooling

21 21 On Site Machining Specialists for On Site Machining Grinding Machining Rotor works Casing machining

22 22 Contact Details SENTRO Technologies USA, LLC 2372 Morse Ave, Suite 200 Irvine, California 92614, USA Tel.:

POWER THROUGH EXPERIENCE

POWER THROUGH EXPERIENCE 01 COMPANY OVERVIEW Providing the technical resources needed to complete your next gas or steam turbine, or generator overhaul 04 SERVICES Outage and Engineering Services Experts